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octonion
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32 votes
1 answer
2k views

Does the heat equation violate causality?

29 votes
2 answers
1k views

$\phi^4$ theory kinks as fermions?

14 votes
2 answers
530 views

Yukawa interaction in QM (0+1D field theory)

13 votes
2 answers
656 views

Haag's theorem in a box

9 votes
1 answer
875 views

Temperature in the Hamiltonian limit

8 votes
1 answer
351 views

Constructing differential equation from arbitrary Hamiltonian

8 votes
2 answers
385 views

Quantizing highly nonlinear field-theories?

8 votes
0 answers
599 views

Mermin-Wagner and Heisenberg spin chains

7 votes
1 answer
1k views

$SU(2)$ and $SO(3)$ WZW models

6 votes
1 answer
340 views

Bosonization and gauge symmetry

6 votes
0 answers
173 views

Stueckelberg mechanism in path integrals

6 votes
0 answers
179 views

SUSY sigma model in QM, bosonic sector?

6 votes
0 answers
156 views

Holography vs edge modes in Chern-Simons theories

6 votes
1 answer
74 views

Perturbations of an integrable system with no resonant tori

5 votes
1 answer
542 views

Interacting fermions on a lattice

5 votes
1 answer
560 views

Coupling constants in QFT equations of motion

4 votes
0 answers
191 views

Second law of thermodynamics in linear response theory

4 votes
0 answers
279 views

Linear terms in Wilson approach to renormalization

4 votes
1 answer
236 views

LSZ and current conservation

4 votes
2 answers
472 views

How do we know the number of photons in a decay?

4 votes
1 answer
329 views

Dimensional regularization: order of integration

4 votes
2 answers
1k views

How do super-renormalizable theories renormalize?

4 votes
0 answers
229 views

Field strength renormalization and the energy-momentum tensor

4 votes
0 answers
66 views

AdS-CFT on a torus

3 votes
0 answers
56 views

Integrating out the 5th dimension in AdS/CFT

3 votes
0 answers
62 views

Semi-classical spinning strings and AdS-CFT

3 votes
2 answers
456 views

One-loop triangle integral with equal masses

3 votes
1 answer
400 views

Perturbative vs Wilsonian renormalization in 2D

3 votes
1 answer
414 views

Hawking radiation in an eternal black hole background

3 votes
0 answers
329 views

Calculating CFT on 2D curved manifolds